3. Selection the layer (CTRL+click
on layer) and run >Filter>Noise>Median.

4. Change the Layer
Mode to Luminosity - The Opacity is at 100% and needs to be
turned down for a more realistic look.

5. The Opacity
has been brought down to 65%

Extra Tip #1

You could also duplicate the
"skin" layer and change the Layer Mode to Soft Light for a warmer feel.

Extra Tip #2

Or create an quick tan by
changing the second skin layer to Multiply. (bring the Opacity down to
less than 50%)

Copy your image layer. Run a whacking great Gaussian Blur
on it--like 20 px radius. Change the blend mode to Screen and lower the
opacity of the layer until the skin looks good. IGNORE the rest of the
image. Now add a Hide All layer mask and with your brush, paint in the
softening where you need it. Thanks to Katrin Eismann for this technique,
which I believe is the one used here.